/*
 *
 * Copyright [2022] [DMetaSoul Team]
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *
 */

package org.apache.flink.lakesoul.sink;

import org.apache.flink.api.common.functions.Partitioner;

public class HashPartitioner implements Partitioner<Long> {

  @Override
  public int partition(Long key, int numPartitions) {
    long hash = key;
    int part = (int) (hash % (long) numPartitions);
    return part < 0 ? (part + numPartitions) % numPartitions : part;
  }
}
